What is the default value for enum variable in C#?

What is the default value for enum variable in C#?

The default value for an enum variable in C# is the first value in the enum declaration, or 0 if the first value is not explicitly set.

For example, consider the following enum declaration:

 enum Colors { Red, Green, Blue };

In this case, the default value for a variable of type Colors will be Colors.Red, which has a value of 0.

If the enum declaration explicitly sets a value for the first member, then the default value will be that value. For example:

 enum Colors { Red = 1, Green, Blue };

In this case, the default value for a variable of type Colors will be Colors.Red, which has a value of 1.

It's important to note that if you don't assign an explicit value to any of the enum members, C# will assign values starting from 0 and incrementing by 1 for each member. So, the first member will have a value of 0, the second member will have a value of 1, and so on.

Examples

  1. "Default value for enum variable in C# explanation"

    Description: Understand what value an enum variable holds by default in C#. Enums in C# are value types and are initialized with a default value if not explicitly set.

    // Default value for enum variable in C# enum Days { Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday } Days defaultDay = default; // Default value will be Days.Sunday

  2. "Setting default value for enum variable in C#"

    Description: Learn how to explicitly set a default value for an enum variable in C# if needed.

    // Setting default value for enum variable in C# enum Status { Active, Inactive, Pending } Status defaultStatus = Status.Pending; // Explicitly setting default value to Status.Pending

  3. "How enum variables are initialized by default in C#"

    Description: Explore the initialization behavior of enum variables in C# if no value is explicitly assigned.

    // How enum variables are initialized by default in C# enum Colors { Red, Green, Blue } Colors defaultColor = default; // Default value will be Colors.Red

  4. "Default value of uninitialized enum variable in C#"

    Description: Understand what value an enum variable holds when it's declared but not initialized in C#.

    // Default value of uninitialized enum variable in C# enum Seasons { Spring, Summer, Autumn, Winter } Seasons currentSeason; // Default value will be Seasons.Spring

  5. "Enum variable default initialization behavior in C#"

    Description: Investigate how enum variables behave upon default initialization in C# and their default values.

    // Enum variable default initialization behavior in C# enum Directions { North, South, East, West } Directions defaultDirection = default; // Default value will be Directions.North

  6. "What is the default value of an enum variable in C#?"

    Description: Learn about the default value assigned to enum variables in C# if no explicit value is provided.

    // What is the default value of an enum variable in C#? enum Months { January, February, March, April, May, June, July, August, September, October, November, December } Months defaultMonth = default; // Default value will be Months.January

  7. "Understanding enum variable initialization in C#"

    Description: Gain insight into how enum variables are initialized by default and what values they hold in C#.

    // Understanding enum variable initialization in C# enum Planets { Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune } Planets defaultPlanet = default; // Default value will be Planets.Mercury

  8. "How to check default value of an enum variable in C#"

    Description: Learn how to determine whether an enum variable has its default value assigned in C#.

    // How to check default value of an enum variable in C# enum Grades { A, B, C, D, F } Grades studentGrade = default; if (studentGrade == default(Grades)) { Console.WriteLine("Student grade has default value."); }

  9. "Enum variable initialization without explicit value in C#"

    Description: Understand the behavior of enum variable initialization when no explicit value is provided in C#.

    // Enum variable initialization without explicit value in C# enum Shapes { Circle, Square, Triangle } Shapes defaultShape = default; // Default value will be Shapes.Circle

  10. "How to assign custom default value for enum variable in C#"

    Description: Explore the process of assigning a custom default value to an enum variable in C# instead of relying on the system default.

    // How to assign custom default value for enum variable in C# enum Levels { Low = 1, Medium = 5, High = 10 } Levels defaultLevel = Levels.Medium; // Setting Medium as the custom default value

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